*{
    padding: 0;
    margin: 0;
}
html,body{
    width: 100%;
    height: 100%;
    overflow: hidden;
}
#wrap{
    width: 100%;
    height: 100%;
    canvas{
        position: absolute;
        transition-duration: 1s;
    }
    ul{
        height: 100%;
        width: 100%;
        list-style: none;
        li{
            height: 100%;
            width: 100%;
            background-image: url(../img/1.png);
            background-size: 100% 100%;
        }
    }
}